JP2000350991A - Electric deionizing apparatus - Google Patents
Electric deionizing apparatusInfo
- Publication number
- JP2000350991A JP2000350991A JP11162713A JP16271399A JP2000350991A JP 2000350991 A JP2000350991 A JP 2000350991A JP 11162713 A JP11162713 A JP 11162713A JP 16271399 A JP16271399 A JP 16271399A JP 2000350991 A JP2000350991 A JP 2000350991A
- Authority
- JP
- Japan
- Prior art keywords
- metal hydroxide
- chamber
- desalting
- cation exchange
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電気脱イオン装置に
係り、特に、電気脱イオン装置の脱塩室内の水解離や炭
酸ガス、シリカ等のイオン化を積極的に行うことによ
り、より純度の高い脱イオン水を得ることを可能とする
電気脱イオン装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrodeionization apparatus, and more particularly to a method for purifying water with a higher purity by positively dissociating water and ionizing carbon dioxide and silica in a deionization chamber of the electrodeionization apparatus. The present invention relates to an electrodeionization device capable of obtaining deionized water.
【０００２】[0002]
【従来の技術】従来、半導体製造工場、液晶製造工場、
製薬工業、食品工業、電力工業等の各種の産業ないし研
究施設等において使用される脱イオン水の製造には、図
１（ａ）に示す如く、電極（陽極１１，陰極１２）の間
に複数のアニオン交換膜１３及びカチオン交換膜１４を
交互に配列して濃縮室１５と脱塩室１６とを交互に形成
し、脱塩室１６にアニオン交換樹脂とカチオン交換樹脂
との混合イオン交換樹脂や、イオン交換繊維等のイオン
交換体１０を充填した電気脱イオン装置が多用されてい
る（特許第１７８２９４３号）。なお、図１（ａ）にお
いて、１７は陽極室、１８は陰極室である。2. Description of the Related Art Conventionally, semiconductor manufacturing plants, liquid crystal manufacturing plants,
In the production of deionized water used in various industries or research facilities such as the pharmaceutical industry, the food industry, and the electric power industry, as shown in FIG. The anion exchange membrane 13 and the cation exchange membrane 14 are alternately arranged to form the concentration chamber 15 and the desalination chamber 16 alternately. An electrodeionization device filled with an ion exchanger 10 such as an ion exchange fiber is frequently used (Japanese Patent No. 1782943). In FIG. 1A, reference numeral 17 denotes an anode chamber, and 18 denotes a cathode chamber.
【０００３】電気脱イオン装置は効率的な脱塩処理が可
能であり、イオン交換樹脂のような再生を必要とせず、
完全な連続採水が可能で、極めて高純度の水が得られる
という優れた効果を奏する。[0003] The electrodeionization apparatus is capable of efficient desalination treatment and does not require regeneration like an ion exchange resin.
Complete continuous water sampling is possible, and an excellent effect that extremely high-purity water is obtained is exhibited.
【０００４】電気脱イオン装置による脱イオン水の製造
においては、水解離によって酸とアルカリを生成させ、
脱塩室内に充填されているイオン交換体を連続的に再生
する必要があり、この脱塩室内の水解離が十分でない
と、脱イオン水の純度や処理の安定性に問題が生じるよ
うになる。また、炭酸ガスやシリカなどの酸性ないし中
性域ではイオン化しない物質を除去するためには、下記
のようなイオン化反応を脱塩室内で生起させて除去する
必要がある。In the production of deionized water using an electrodeionization apparatus, an acid and an alkali are generated by dissociation of water,
It is necessary to continuously regenerate the ion exchanger packed in the deionization chamber, and if the water in the deionization chamber is not sufficiently dissociated, problems will occur in the purity of the deionized water and the stability of the treatment. . Further, in order to remove substances that do not ionize in an acidic or neutral region, such as carbon dioxide and silica, it is necessary to cause the following ionization reaction in a desalting chamber to remove them.
【０００５】ＣＯ2＋ＯＨ- → ＨＣＯ3 - ＳｉＯ2＋ＯＨ- → ＨＳｉＯ3 - 従来、脱塩室内の水解離や上記イオン化を促進するため
に、アニオン交換膜の表面層に弱塩基型のアニオン交換
基を導入する方法（特開平８−１８２９９１号公報）、
或いはカチオン交換膜の表面層に弱酸型のカチオン交換
基を導入する方法（特開平８−１９２１６４号公報）等
が提案されている。[0005] CO 2 + OH - → HCO 3 - SiO 2 + OH - → HSiO 3 - conventionally, in order to promote the dissociation of water and the ionization of desalting compartment, the anion-exchange groups of weak base type in the surface layer of the anion-exchange membrane (Japanese Unexamined Patent Publication No. Hei 8-182991),
Alternatively, a method of introducing a weak acid type cation exchange group into the surface layer of a cation exchange membrane (Japanese Patent Application Laid-Open No. 8-192164) has been proposed.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来法でも水解離量やイオン化率が十分であるとは言え
ず、より一層容易かつ効率的に水解離量やイオン化率を
増大させて高純度の脱イオン水を製造することが望まれ
ている。However, the water dissociation amount and the ionization rate cannot be said to be sufficient even in the above-mentioned conventional method, and the water dissociation amount and the ionization rate can be more easily and efficiently increased to achieve high purity. It is desired to produce deionized water.
【０００７】本発明は上記従来の実情に鑑みてなされた
ものであって、脱塩室内の水解離や炭酸ガス、シリカ等
のイオン化を積極的に行うことにより、より純度の高い
脱イオン水を得ることを可能とする電気脱イオン装置を
提供することを目的とする。The present invention has been made in view of the above-mentioned conventional circumstances, and more highly purified deionized water is obtained by positively performing water dissociation and ionization of carbon dioxide, silica and the like in a deionization chamber. It is an object of the present invention to provide an electrodeionization device which can be obtained.
【０００８】[0008]
【課題を解決するための手段】本発明の電気脱イオン装
置は、陰極と陽極との間に、複数のアニオン交換膜とカ
チオン交換膜とを交互に配列して濃縮室と脱塩室とを交
互に形成し、該脱塩室にイオン交換体を充填してなる電
気脱イオン装置において、例えば次のようにして脱塩室
内にマグネシウム又は重金属の水酸化物（以下、これら
を「金属水酸化物」と称す。）を存在させたものであ
る。According to the electrodeionization apparatus of the present invention, a plurality of anion exchange membranes and cation exchange membranes are alternately arranged between a cathode and an anode to form a concentration chamber and a desalination chamber. In an electrodeionization device formed alternately and filled with an ion exchanger in the desalting chamber, for example, a magnesium or heavy metal hydroxide (hereinafter referred to as “metal hydroxide”) is placed in the desalting chamber as follows. Object).
【０００９】 カチオン交換膜の脱塩室側の表面に金
属水酸化物を担持させる。 脱塩室にイオン交換体と金属水酸化物を担持させた
触媒との混合物を充填する。この場合、触媒の混合割合
はイオン交換体に対して３〜７０重量％であることが好
ましい。 脱塩室に金属水酸化物を担持させたスペーサを設け
る。A metal hydroxide is supported on the surface of the cation exchange membrane on the desalination chamber side. A mixture of an ion exchanger and a catalyst supporting a metal hydroxide is filled in a desalting chamber. In this case, the mixing ratio of the catalyst is preferably 3 to 70% by weight based on the ion exchanger. A spacer supporting a metal hydroxide is provided in the desalting chamber.
【００１０】即ち、本発明者は、脱塩室内に金属水酸化
物を導入することにより、その触媒作用によって水を効
率的に解離させることができ、また、前述のイオン化も
促進されることを見出し、本発明に到達した。That is, the present inventor has found that by introducing a metal hydroxide into a desalting chamber, water can be efficiently dissociated by its catalytic action, and the above-mentioned ionization is promoted. Heading, the present invention has been reached.
【００１１】本発明では、脱塩室内の金属水酸化物の触
媒作用で、金属水酸化物表面で水の解離や、前記炭酸ガ
スやシリカのイオン化が促進され、この結果、脱塩室内
のイオン交換効率が高められ、得られる脱イオン水の純
度が著しく向上する。In the present invention, the dissociation of water and the ionization of carbon dioxide and silica are promoted on the surface of the metal hydroxide by the catalytic action of the metal hydroxide in the desalting chamber. The exchange efficiency is enhanced and the purity of the resulting deionized water is significantly improved.
【００１２】[0012]
【発明の実施の形態】以下に本発明の実施の形態を詳細
に説明する。Embodiments of the present invention will be described below in detail.
【００１３】本発明の電気脱イオン装置の基本的な構成
は、図１（ａ）に示す従来の一般的な電気脱イオン装置
と同様の構成とされている。さらに濃縮室や電極室にイ
オン交換体、イオン導電体を充填した装置も使用可能で
ある。The basic structure of the electrodeionization apparatus of the present invention is the same as that of the conventional general electrodeionization apparatus shown in FIG. Further, an apparatus in which an ion exchanger or an ion conductor is filled in a concentration chamber or an electrode chamber can be used.
【００１４】本発明においては、このような電気脱イオ
ン装置において、例えば次の〜のような方法で電気
脱イオン装置の脱塩室内に金属水酸化物を導入する。In the present invention, in such an electrodeionization apparatus, a metal hydroxide is introduced into the deionization chamber of the electrodeionization apparatus by, for example, the following method.
【００１５】なお、本発明において、金属水酸化物とし
ては、一般的には水酸化マグネシウムが用いられるが、
何らこれに限定されずニッケル、マンガン、鉄、コバル
ト、銅、パラジウム、鉛、チタン、クロム、白金、イン
ジウム、イリジウム等の重金属の水酸化物であっても良
い。これらは１種を単独で用いても２種以上を併用して
も良い。In the present invention, magnesium hydroxide is generally used as the metal hydroxide.
The present invention is not limited to these, and hydroxides of heavy metals such as nickel, manganese, iron, cobalt, copper, palladium, lead, titanium, chromium, platinum, indium, and iridium may be used. These may be used alone or in combination of two or more.
【００１６】 カチオン交換膜の脱塩室側の表面に金
属水酸化物を担持させる。この担持方法としては、例え
ば、０．１〜１０重量％程度の塩化マグネシウム水溶液
をカチオン交換膜の脱塩室側の表面に塗布した後、アル
カリ水溶液に浸漬し、その後乾燥する方法を採用するこ
とができる。A metal hydroxide is supported on the surface of the cation exchange membrane on the desalination chamber side. As this loading method, for example, a method in which an aqueous solution of magnesium chloride of about 0.1 to 10% by weight is applied to the surface of the cation exchange membrane on the side of the desalting chamber, then immersed in an aqueous alkaline solution, and then dried. Can be.
【００１７】なお、アニオン交換膜表面に金属水酸化物
を担持した場合は、図１（ｂ）に示す如く、アニオン交
換膜１３の表面は、ＯＨ-イオンが透過することでＨ+イ
オンが多く存在して酸性となり、金属水酸化物が析出し
ないため、金属水酸化物を安定に担持し得ない。従っ
て、Ｈ+イオンが透過し、ＯＨ-イオンが多く存在してア
ルカリ性となるカチオン交換膜１４の脱塩室１６側の表
面に金属水酸化物を担持する。When a metal hydroxide is carried on the surface of the anion exchange membrane, as shown in FIG. 1B, the surface of the anion exchange membrane 13 has a large amount of H + ions due to the transmission of OH - ions. Since the metal hydroxide is present and becomes acidic, and the metal hydroxide does not precipitate, the metal hydroxide cannot be stably supported. Therefore, the metal hydroxide is carried on the surface of the cation exchange membrane 14 on the side of the desalting chamber 16 which becomes alkaline due to the permeation of H + ions and the presence of many OH - ions.
【００１８】 脱塩室にイオン交換体と金属水酸化物
を担持させた触媒との混合物を充填する。ここで、触媒
に金属水酸化物を担持させる方法としては、繊維状、ビ
ーズ状等の活性炭、ゼオライト等の触媒を０．１〜１０
重量％程度の塩化マグネシウム水溶液に浸漬した後引き
上げ、その後、アルカリ水溶液に浸漬し乾燥する方法を
採用することができる。この場合、金属水酸化物を担持
した触媒の混合割合は、少な過ぎるとこれを混合したこ
とによる十分な改善効果が得られず、多過ぎると相対的
にイオン交換体が減って、イオン交換能が低下すること
から、イオン交換体に対して３〜７０重量％、特に５〜
２０重量％とするのが好ましい。The desalting chamber is filled with a mixture of an ion exchanger and a catalyst supporting a metal hydroxide. Here, as a method of supporting the metal hydroxide on the catalyst, activated carbon in the form of fibers, beads, or the like, or a catalyst such as zeolite in the range of 0.1 to 10
It is possible to adopt a method of immersing in an aqueous solution of magnesium chloride of about weight%, pulling it up, then immersing in an aqueous alkali solution and drying. In this case, if the mixing ratio of the catalyst supporting the metal hydroxide is too small, a sufficient improvement effect by mixing the catalyst cannot be obtained, and if the mixing ratio is too large, the amount of the ion exchanger relatively decreases and the ion exchange capacity is reduced. From 3 to 70% by weight, especially from 5 to 70% by weight of the ion exchanger.
Preferably it is 20% by weight.
【００１９】 脱塩室に金属水酸化物を担持させたス
ペーサを設ける。ここで、スペーサに金属水酸化物を担
持させる方法としては、メッシュ状、ジグザグ状等のポ
リエチレン製、ポリプロピレン製、ポリエステル製等の
カチオン交換基を有したスペーサを１．０〜１０重量％
程度の塩化マグネシウム水溶液に浸漬した後引き上げ、
その後、アルカリ水溶液に浸漬し乾燥する方法を採用す
ることができる。A spacer carrying a metal hydroxide is provided in the desalting chamber. Here, as a method of supporting the metal hydroxide on the spacer, a spacer having a cation exchange group such as a mesh-like or zig-zag-like polyethylene, polypropylene, or polyester is used in an amount of 1.0 to 10% by weight.
After immersion in about magnesium chloride aqueous solution, pull up,
Thereafter, a method of dipping in an aqueous alkali solution and drying can be adopted.
【００２０】本発明において、金属水酸化物を脱塩室内
に存在させる方法としては、上記〜に何ら限定され
ず、イオン交換体に金属水酸化物を担持させても良い。In the present invention, the method for allowing the metal hydroxide to be present in the desalting chamber is not limited to the above, and the metal hydroxide may be supported on the ion exchanger.
【００２１】[0021]
【実施例】以下に比較例及び実施例を挙げて本発明をよ
り具体的に説明する。The present invention will be described more specifically with reference to comparative examples and examples.
【００２２】なお、以下の比較例及び実施例で用いた試
験装置は、下記の装置を図２に示す如く、直列に配置し
たものである。The test apparatus used in the following comparative examples and examples is such that the following apparatuses are arranged in series as shown in FIG.
【００２３】 電気脱イオン装置： 栗田工業（株）製「ピュアエースＰＡ−２００」 処理水量１００Ｌ／ｈｒ 活性炭装置 ： 栗田工業（株）製「クリコールＫＷ１０−３０」 逆浸透膜装置 ： 栗田工業（株）製「マクエースＫＮ２００」 比較例１ 電気脱イオン装置のイオン交換膜及び脱塩室に充填する
イオン交換樹脂として次のものを用い、表１に示す条件
で通水を行い、得られた処理水の抵抗値、シリカ濃度及
びシリカ除去率を調べ、結果を表１に示した。 アニオン交換膜： 旭化成工業（株）製「アシプレック
スＡ５０１ＳＢ」 カチオン交換膜： 旭化成工業（株）製「アシプレック
スＫ５０１ＳＢ」 イオン交換樹脂： アニオン交換樹脂；三菱化学（株）
製「ＳＡ１０Ａ」とカチオン交換樹脂；三菱化学（株）
製「ＳＫ１Ｂ」とを体積混合比率６：４で混合したも
の。Electrodeionization device: “Pure Ace PA-200” manufactured by Kurita Kogyo Co., Ltd. Treated water volume 100 L / hr Activated carbon device: “Crycol KW10-30” manufactured by Kurita Kogyo Co., Ltd. Reverse osmosis membrane device: Kurita Kogyo Co., Ltd. Comparative Example 1 The following was used as the ion exchange resin to be filled in the ion exchange membrane and the desalting chamber of the electrodeionization apparatus, and water was passed under the conditions shown in Table 1 to obtain treated water. Was examined for the resistance value, silica concentration, and silica removal ratio, and the results are shown in Table 1. Anion exchange membrane: “Aciplex A501SB” manufactured by Asahi Kasei Kogyo Co., Ltd. Cation exchange membrane: “Aciplex K501SB” manufactured by Asahi Kasei Kogyo Co., Ltd. Ion exchange resin: Anion exchange resin; Mitsubishi Chemical Corporation
"SA10A" and cation exchange resin; Mitsubishi Chemical Corporation
Manufactured by “SK1B” manufactured at a volume mixing ratio of 6: 4.
【００２４】実施例１ 比較例１において、カチオン交換膜の脱塩室側の膜表面
に２重量％塩化マグネシウム溶液を塗布した後、ｐＨ１
０のＮａＯＨ水溶液中に１時間浸漬し、その後２５℃で
２時間風乾したものを用いたこと以外は同様にして、表
１に示す通水条件で試験を行い、結果を表１に示した。Example 1 In Comparative Example 1, a 2% by weight magnesium chloride solution was applied to the membrane surface of the cation exchange membrane on the desalting chamber side, and the pH was adjusted to 1
The test was carried out in the same manner as in Example 1 except that the sample was immersed in an aqueous solution of NaOH for 1 hour and then air-dried at 25 ° C. for 2 hours under the water-passing conditions shown in Table 1. The results are shown in Table 1.
【００２５】実施例２ 比較例１において、脱塩室に充填するイオン交換樹脂
に、下記の活性炭に下記の条件で水酸化マグネシウムを
担持させた触媒を５重量％混合したこと以外は同様にし
て、表１に示す通水条件で試験を行い、結果を表１に示
した。 活性炭 ： 栗田工業（株）製「クリコールＫＷ１０−
３０」 担持条件： ２重量％ＭｇＣｌ2水溶液に活性炭を１時
間浸漬した後、ｐＨ１０のＮａＯＨ水溶液に１時間浸漬
後、１００℃で５時間乾燥した。Example 2 In the same manner as in Comparative Example 1, except that 5% by weight of a catalyst in which magnesium hydroxide was supported on the following activated carbon under the following conditions was mixed with the ion exchange resin charged in the desalting chamber. The test was conducted under the water flow conditions shown in Table 1, and the results are shown in Table 1. Activated carbon: Kurikou KW10-
30 "Loading conditions: Activated carbon was immersed in a 2 % by weight aqueous solution of MgCl 2 for 1 hour, then immersed in a pH 10 NaOH aqueous solution for 1 hour, and then dried at 100 ° C. for 5 hours.
【００２６】実施例３ 比較例１において、脱塩室内に水酸化マグネシウムを下
記条件で担持させたメッシュ状のポリエステル製スペー
サを取り付けたこと以外は同様にして、表１に示す通水
条件で試験を行い、結果を表１に示した。 担持条件： カチオン交換基をグラフト重合で導入した
スペーサを２重量％ＭｇＣｌ2水溶液に１時間浸漬した
後、ｐＨ１０のＮａＯＨ水溶液に１時間浸漬後、８０℃
で３時間乾燥した。Example 3 In the same manner as in Comparative Example 1, except that a mesh-shaped polyester spacer carrying magnesium hydroxide under the following conditions was installed in the desalting chamber, the test was conducted under the water-passing conditions shown in Table 1. And the results are shown in Table 1. Loading conditions: The spacer in which the cation exchange group was introduced by graft polymerization was immersed in a 2 wt% MgCl 2 aqueous solution for 1 hour, then immersed in a pH 10 NaOH aqueous solution for 1 hour, and then heated to 80 ° C.
For 3 hours.
【００２７】[0027]
【表１】 [Table 1]
【００２８】表１より明らかなように、金属水酸化物を
脱塩室内に導入した実施例１〜３では、従来型の比較例
１に比べて処理水質が向上しており、特にシリカの除去
率が著しく向上し、比抵抗値が高く、シリカ濃度が極低
濃度に低減させた処理水を得ることができる。As is apparent from Table 1, in Examples 1 to 3 in which the metal hydroxide was introduced into the desalting chamber, the quality of the treated water was improved as compared with Comparative Example 1 of the conventional type. It is possible to obtain treated water in which the rate is remarkably improved, the specific resistance value is high, and the silica concentration is reduced to an extremely low concentration.
【００２９】[0029]
【発明の効果】以上詳述した通り、本発明の電気脱イオ
ン装置によれば、脱塩室内の水解離や炭酸ガス、シリカ
等のイオン化を促進して、著しく純度の高い脱イオン水
を得ることができる。As described above in detail, according to the electrodeionization apparatus of the present invention, the water dissociation in the deionization chamber and the ionization of carbon dioxide, silica, etc. are promoted to obtain deionized water of extremely high purity. be able to.
【図１】電気脱イオン装置の構成を示す模式的な断面図
である。FIG. 1 is a schematic sectional view showing a configuration of an electrodeionization apparatus.
【図２】実施例及び比較例で用いた試験装置を示す系統
図である。FIG. 2 is a system diagram showing a test apparatus used in Examples and Comparative Examples.
１ 活性炭装置 ２ 逆浸透膜装置 ３ 電気脱イオン装置 １０ イオン交換体 １１ 陽極 １２ 陰極 １３ アニオン交換膜 １４ カチオン交換膜 １５ 濃縮室 １６ 脱塩室 １７ 陽極室 １８ 陰極室 DESCRIPTION OF SYMBOLS 1 Activated carbon apparatus 2 Reverse osmosis membrane apparatus 3 Electrodeionization apparatus 10 Ion exchanger 11 Anode 12 Cathode 13 Anion exchange membrane 14 Cation exchange membrane 15 Concentration room 16 Demineralization room 17 Anode room 18 Cathode room
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D006 GA03 GA17 HA47 JA30A JA44A KB11 MA13 MA14 PB06 PB08 PB23 PC01 PC11 PC42 4D061 DA08 DB13 DB19 DC18 DC19 DC20 EA09 EB13 FA06 FA08 FA09 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D006 GA03 GA17 HA47 JA30A JA44A KB11 MA13 MA14 PB06 PB08 PB23 PC01 PC11 PC42 4D061 DA08 DB13 DB19 DC18 DC19 DC20 EA09 EB13 FA06 FA08 FA09 FA09
Claims (5)
換膜とカチオン交換膜とを交互に配列して濃縮室と脱塩
室とを交互に形成し、該脱塩室にイオン交換体を充填し
てなる電気脱イオン装置において、該脱塩室にマグネシ
ウム又は重金属の水酸化物を存在させたことを特徴とす
る電気脱イオン装置。An anion exchange membrane and a cation exchange membrane are alternately arranged between a cathode and an anode to form a concentration chamber and a desalination chamber alternately. An electrodeionization apparatus comprising: an electrodeionization apparatus, wherein magnesium or heavy metal hydroxide is present in the desalting chamber.
脱塩室側の表面に前記水酸化物を担持させたことを特徴
とする電気脱イオン装置。2. The electrodeionization apparatus according to claim 1, wherein the hydroxide is carried on the surface of the cation exchange membrane on the side of the desalination chamber.
換体と前記水酸化物を担持させた触媒との混合物を充填
したことを特徴とする電気脱イオン装置。3. The electrodeionization apparatus according to claim 1, wherein the desalting chamber is filled with a mixture of an ion exchanger and a catalyst supporting the hydroxide.
イオン交換体に対して３〜７０重量％であることを特徴
とする電気脱イオン装置。4. The electrodeionization apparatus according to claim 3, wherein the mixing ratio of the catalyst is 3 to 70% by weight with respect to the ion exchanger.
化物を担持させたスペーサを設けたことを特徴とする電
気脱イオン装置。5. The electrodeionization apparatus according to claim 1, wherein a spacer supporting the hydroxide is provided in the desalting chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16271399A JP4106810B2 (en) | 1999-06-09 | 1999-06-09 | Electrodeionization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16271399A JP4106810B2 (en) | 1999-06-09 | 1999-06-09 | Electrodeionization equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000350991A true JP2000350991A (en) | 2000-12-19 |
| JP4106810B2 JP4106810B2 (en) | 2008-06-25 |
Family
ID=15759888
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16271399A Expired - Fee Related JP4106810B2 (en) | 1999-06-09 | 1999-06-09 | Electrodeionization equipment |
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| Country | Link |
|---|---|
| JP (1) | JP4106810B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094064A (en) * | 2001-09-27 | 2003-04-02 | Kurita Water Ind Ltd | Electric deionization equipment |
| WO2018117035A1 (en) * | 2016-12-22 | 2018-06-28 | オルガノ株式会社 | Deionized water manufacturing system, deionized water manufacturing device, and deionized water manufacturing method |
-
1999
- 1999-06-09 JP JP16271399A patent/JP4106810B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094064A (en) * | 2001-09-27 | 2003-04-02 | Kurita Water Ind Ltd | Electric deionization equipment |
| WO2018117035A1 (en) * | 2016-12-22 | 2018-06-28 | オルガノ株式会社 | Deionized water manufacturing system, deionized water manufacturing device, and deionized water manufacturing method |
| KR20190057377A (en) | 2016-12-22 | 2019-05-28 | 오르가노 코포레이션 | A deionized water production system, an electric deionized water production apparatus, and a deionized water production method |
| JPWO2018117035A1 (en) * | 2016-12-22 | 2019-10-24 | オルガノ株式会社 | Deionized water production system, electric deionized water production apparatus, and deionized water production method |
| KR20200102552A (en) * | 2016-12-22 | 2020-08-31 | 오르가노 코포레이션 | The deionized water manufacturing system, and the electric deionized water manufacturing device and deionized water manufacturing method |
| KR102210335B1 (en) * | 2016-12-22 | 2021-02-01 | 오르가노 코포레이션 | Deionized water production system, electric deionized water production device, and deionized water production method |
| KR102269869B1 (en) | 2016-12-22 | 2021-06-28 | 오르가노 코포레이션 | The deionized water manufacturing system, and the electric deionized water manufacturing device and deionized water manufacturing method |
| JP6998324B2 (en) | 2016-12-22 | 2022-01-18 | オルガノ株式会社 | Deionized water production system, electric deionized water production equipment and deionized water production method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4106810B2 (en) | 2008-06-25 |
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